Bouens



J. G. HOLBOURNS.

MECHANICALLY CAST TYPE BAR;

APPLICATION FILED FEB. 28. 1919.

1 ,306,902.. Patented June 17, 1919.

INVENTO ATTYS.

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ilNiFl in W GLENNIE HOLBOURNS, OF LONDON, ENGLAND, ASSIGNOR TO LINOTYPE AND MACHINERY LIMITED, OF LONDON, ENGLAND, A LIMITED LIABILITY COMPANY OF GREAT BRITAIN.

MECHANICALLY-CAST TYPELBAR.

Specification of Letters Patent;

Patented June 1?, 1919.

Application filed February 28, 1919. Serial No. 279,834.

To all whom it may concern Be it known that I, JOHN GLENNIE HOL- BOURNS, a subject of the King of the United Kingdom of Great Britain and Ireland, and residing at 188 and 189 Fleet street, in the city of London, England, have invented new and useful Improvements in or Relating to hiechzinicallyfiast Type-Bars, of which the following is a specification.

This invention relates to mechanically cast type bars and has for its object to cast these devices in such form that they'can be locked together in pairs, as for example, may be necessary in type bars intended to print a persons name and his address in two parso composed, displacement or transposition can readily occur, with the result that a stockholders name may be presented with an incorrect address or vice versa.

The present invention aims at providing cast type bars, hereinafter called slugs, which shall be interlocked together in pairs, one shig bearing say the name of a stockholder, and the other say his address. Forv this purpose, one slug is provided with a dovetail or equivalent recess which receives a dovetail or equivalent projection cast on the other or complementary slug. If desired, these projections may be cast with a slight flare so that the slug provided with the recess will prevent any movement of the other slug in the direction of height to paper.

The type of slug to which the present invention more particularly relates, is one of very shallow depth in the direction of height to paper, and may be cast in a typographical composing or casting machine known commercially under the trade mark Linotype. For this purpose the mold wheel of that machine would be provided with two molds, of which the face of one would be recessed to cast the slugs with the dovetail recesses, and the face of the other would be recessed to cast the complementary slugs with the proshowing one construction of the two complementary slugs according to the said invention, these slugs being represented integral with ets or sprues such as are ordmarily produced when the slugs are cast in the before-mentioned typographical and casting machine.

Fig. 3 is a perspective view showing the same two slugs as those represented in Figs.

composing l and 2 with the sprues detached, and interlocked in printing condition, and F g. 1S3 perspective vlew similar to Fig. 3, but showing a modified form of complementary slugs in interlocked and printing condition. j p H j 7 Like reference numerals are used to indi cate like parts in both of the arrangements illustrated in th drawings.

As hereinbefore stated, the particular slugs to which the present invention relates, are intended to be associated and used in pairs, one slug bearing say the stockholders name and the other slug bearing say the stockholders address.

Fig. 3 represents such a pair of slugs which latter in that figure, and in. the separate representations shown in Figs. 1 and 2, are respectively identified by the numerals l, 2.

The slug 1 is formed with the dovetail or equivalent recess 3, and the slug 2 with a dovetail projection 4 adapted to fit snugly into the recess 3 as shown in Fig. 3, so as, in efiect, to lock the two slugs together.

Each of the slugs 1 2, as indicated diagrammatically in the drawings, has the usual. line 5 of printing characters (hereinafter termed a printing line) so positioned thereon that when the two complementary slugs are interlocked as shown in. Fig. 3, the two printing lines 5 thereof will be parallel and at the required distance apart.

The sprues 6 shown in dot-and-dash lines in Figs. 1 and 2 are the parts which are formed within the mold of the typographical line-casting machine, and these by sawing or otherwise, are afterward detached from the slugs 1 and 2, which latter are then left in the shallow form in which they may be readily locked together in the manner represented in Fig.

The printing lines 5 are, as ordinarily, cast in the formative cavities of a line of matrices assembled in" order of composition, while the remaining portion of each slug is formed in a recess in the face of the mold, and the printing lines may be cast on the respective slugs in any desired position according to the space required to be left between the printing lines of each pair of interlocked slugs.

The shape of the interlocking dovetails may "be varied and, as an example of one such variation,';Fig. 4 shows an arrangementwherein two interlocking dovetails 7 are provided, one near each end of the pair of slugs, this, as distinguished from the a-rrangement illustrated in Figs. 1, 2 and 3, wherein 'a single dovetail extends practically throughout the length of the slugs; the said shape may however be varied in other respects for example, instead 'of the dovetails being of rectangular form as illustrated in the drawings, their edges may be inclined or curved. The diflerent pairs of interlocked slugs constructed as aforesaid, when used for printing, are fitted in a suitable carrier by which they can be presented in printing position in the desired order.

Having described my invention, I declare that what I claim and desire to secure by Letters Patent is 1. As a new article of manufacture a cast type bar provided with means cast integral therewith and by which it can be locked to an adjacent type bar.

2. As a new article of manufacture a pair of cast type bars provided with mutually engaging means cast integral therewith by which they can be locked together. H

3. As a new article of manufacture a pair of cast type bars of shallow depth in the direction of height to paper, one of such type bars being provided with a single dovetail projection, and the other of such type bars being provided with a single dovetail recess adapted to receive the said projection so as to lock the two type bars together.

4. As a new article of manufacture a pair of cast type bars of shallow depth in the direction of height to paper provided with a plurality of dovetail projections on one of the said type bars, and 'a'plurality of dovetail recesses in the other of such type bars, the said recesses being adapted to receive the dovetail projections so as to lock the two type bars together. p

In testimony whereof I have aflixed my signature hereto.

JOHN GLENNIE HOLBOURNS.

Copies of this-patent may be obtained for five cents eaeh,by addressing the Commissioner of Patents,

Washington, D00. V 

